A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.
Classification: Parts for steam turbines
NSN 2925-00-088-6790
NSN 6110-01-506-5098
NSN 5945-01-082-2771
NSN 5915-01-580-0308
NSN 6145-01-451-4599
NSN 6645-01-514-7403
NSN 7035-01-227-2546
NSN 6130-01-634-0603
NSN 6145-01-581-2744
NSN 5935-01-634-0668
NSN 6685-01-146-0166
NSN 6320-00-809-5744